6
DISPLAY
Type
Digit height
Response time
4 digit red LED (9999 counts) for 2493 readouts (3 displays)
4 1/2 digit red LED for 2491, 2492
0.56 inch or 14mm
250ms min. update time for V/V/V, A/A/A, 2491 and 2492
Less than 500ms min. update time for V/A/Hz, Watt/VAR/PF 2493
AUXILIARY POWER
120V or 240V AC (+/- 15%), 45-65 Hz, 4.5VA max.
or select 24, 48, 125V DC
INPUT RATING
Current:
Voltage:
Frequency
0 to 1 A AC; 0 to 5A AC
0-120V AC; 0-240V AC, 0-480V AC (W/VAR/PF/PA)
0-150V AC; 0-300V AC; 0-600V AC (Volt/Freq)
0-150V DC; 0-300V DC; 0-600V DC
50/60 Hz and 400 Hz (only V/A/Hz units)
INPUT RANGE
Rated Current:
Rated Voltage:
A/W/VAR: 0-200%; PF/PA: 20-200%
V/W/VAR: 0-120%; PF/PA: 50-120%; Frequency: 20-120%
INPUT FREQUENCY
RANGE
Volts, Amps, Hertz 45-65 Hz up to the 9th harmonic measuring capability
±2% of specified accuracy
SUSTAINED INPUT
Rated Current:
Rated Voltage:
A/W/VAR/PF/PA: 200% continuous; 10x rating for 5 seconds
V/W/VAR/FREQ: 120% continuous; PF/PA: 150% continuous
BURDEN
Current:
Voltage:
<0.2 VA per element
<0.2 VA per element; 240V: <0.4VA per element
ACCURACY
Reference condition:
25℃, 45-74%RH, at rated
input 60 Hz sine wave,
30 min. warmup
Voltage
Current +/- 0.2% of reading +/- 0.1% of full scale
Watt/VAR
Power Factor +/- 0.05 Power Factor
Phase Angel +/- 0.5° Phase Angle
Frequency +/- 0.1 Hz @ 40-70 Hz, +/- 0.5 Hz @ 300-500 Hz
ANALOG OUTPUT
AND RESPONSE
TIME
0 to 1 mA, 4 to 20 mA,
12+/-8 mA
10V DC compliance into 10k ohm load maximum;15V DC compliance into 750 ohm max.
1 second maximum response time within ±1% of final value
16 bit resolution; accuracy 0.4% of span
OUTPUT RIPPLE
0.5% peak-to-peak maximum of output span
COMMUNICATIONS
RS-485 half duplex interface with networking up to 32 units
Selectable Baud Rate
ISOLATION VOLTAGE
AND INSULATION
RESISTANCE
Input to output/case:
Aux. power to case:
Aux. power to output:
Output to case:
2500V AC for 1 minute / more than 10 Megohm @ 500V DC
2000V AC for 1 minute / more than 10 Megohm @ 500V DC
DC: 500V DC minimum / 10 Megohm minimum @100V DC
AC: 2000V AC for 1 minute / more than 10 Megohm @ 500V DC
DC: 500V DC minimum / 10 Megohm minimum @ 100V DC
1000V AC for 1 minute . more than 10 Megohm @ 500V DC
TEMPERATURE
RANGE
Operating:
Storage:
-20 to +60℃ at 90% RH maximum (non-condensing)
-40 to +85℃
TEMPERATURE
COEFFICIENT
Display and Comm:
Analog Output:
±150 PPM/℃ maximum of full scale
±250 PPM/℃ maximum of full scale
INFLUENCE OF:
Magnetic field:
Input voltage:
Influence of:
Unbalanced current:
Input frequency:
Load resistance:
(Analog input)
0.5% maximum at 400 ampere turns/meter
<0.05 Power Factor (10-120% of rated voltage)
Shock/Vibration: per ANSI C39.1
<0.2% of full scale
<0.05 Power Factor (45-65 Hz)
0 to 1 mA: 0-10K ohm within ±0.05% of full scale
4 to 20 mA, 12 ± 8 mA: 0-750 ohm within ±0.05% of full scale
DIMENSIONS:
WEIGHT:
W x D x H = 4.33 x 6.54 x 4.33 inches
1000g (2.2 lbs) or less
General Specifications
Power Series
Plus
Digital Switchboard Meters
